Final answer:
The DSM-5 suggests that two-thirds of individuals with substance use disorder will likely develop schizophrenia or schizoaffective disorder. This underscores the risk associated with substance use and the importance of addressing both addiction and the potential for severe mental health disorders.
Step-by-step explanation:
The DSM-5 estimates that two-thirds of those with substance use disorder will likely develop schizophrenia or schizoaffective disorder. This estimation indicates the substantial risk for individuals with substance use disorder to develop more severe psychotic disorders. The link between substance use and psychotic disorders such as schizophrenia is significant due to the altered states of consciousness and potential changes in brain chemistry associated with prolonged drug use. Substance use, particularly of substances that affect the dopaminergic systems, such as stimulants, can exacerbate or contribute to the onset of psychotic symptoms. Schizophrenia itself is a complex mental disorder characterized by disruptions in thought processes, perceptions, emotional responsiveness, and social interactions. The severity and chronic nature of schizophrenia typically necessitate lifelong treatment with antipsychotics to manage symptoms.For individuals suffering from a substance use disorder, there is a pressing need for comprehensive treatment programs. These should address not only the addictive behaviors but also the potential development of severe mental health disorders. Early intervention and ongoing support are crucial in managing the dual diagnosis of substance use disorder and schizophrenia, which can significantly impact one's quality of life.